Gen. Martin E. Dempsey, commanding general of U.S. Army Training and Doctrine Command, addresses students at the Joint and Combined Warfighting School in Norfolk, Va., July 16, 2010. The students, who are field-grade officers from all services, multi...

Gen. Martin E. Dempsey, commanding general of U.S. Army Training and Doctrine Command, addresses students at the Joint and Combined Warfighting School in Norfolk, Va., July 16, 2010. The students, who are field-grade officers from all services, multi...

Gen. Martin E. Dempsey, commanding general of U.S. Army Training and Doctrine Command, addresses students at the Joint and Combined Warfighting School in Norfolk, Va., July 16, 2010. The students, who are field-grade officers from all services, multi...